One of the few times I'm actually qualified to comment on an article. Top comment by tokenadult has it all wrong. Sure you can do Wake Back to Bed ones or mess up your sleep cycle to do it but you certainly don't have to. I never did I lucid dream several times a week. It's much easier to just keep a dream journal and do realit checks while you're awake.

Second, there's no need for piles of studies on lucid dreaming. I never feel tired or anything like that after I have big lucid dreams. The opposite in fact. After a particularly emotional or powerful dream I feel alive! I feel exuberant and it's easier for me to get out of bed. It's a fantastic way to practice skills as well. I'm an MMA fighter and I have many many fighting dreams that feel perfectly fluid and natural. The pathways in my brain for fighting are being stimulated for hours at a time while I sleep. Sure it's not 1:1 with real life practice but the opponents in my dreams often do novel moves I have never been exposed to before and I have to come up with novel counter techniques. It's clear to me that lucid dreaming practice is helpful to real world skills.

Not to mention the entertainment value. My favorite most recent one was telekinetic powers. I made forks and knives fly across the room then when I wanted to test out more power I looked out the window and made a nice car sized chunk of earth come rippping out of the ground. It was fucking awesome.